2245640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1853

約数の個数: 32

約数和(自身を含む): 5218560

約数和(自身を除く): 2972920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1811, 3622, 7244, 9055, 14488, 18110, 36220, 56141, 72440, 112282, 224564, 280705, 449128, 561410, 1122820, 2245640]

約数ペア:

[(1, 2245640), (2, 1122820), (4, 561410), (5, 449128), (8, 280705), (10, 224564), (20, 112282), (31, 72440), (40, 56141), (62, 36220), (124, 18110), (155, 14488), (248, 9055), (310, 7244), (620, 3622), (1240, 1811)]